
enum Gender {
	male = 'male',
	female = 'female',
};

interface Person {
	name: string;
	age: number;
	gender: Gender;
	isLive: boolean;
}

class Point {
	x: number;
	y: number;
	constructor (x: number, y: number) {
		this.x = x;
		this.y = y;
	}
}